How to retrieve URL fragment identifier in JSP

Is there an easy way to get the URL fragment identifier (everything after the hash '#') in JSP? I've tried just finding even the URL 开发者_如何学Goitself which includes the fragment identifier with ${pageContext.request.queryString} and other similar pageContext.request methods without success.

I've realized fragment identifiers are never sent to the server! That's why I can't seem to find them in JSP methods...